CISO Tribune

Vendor comparison · 2 companies

Obsidian Security vs Silverfort

Obsidian Security sells real-time visibility, continuous governance and runtime enforcement over agents, identities and integrations across third-party apps. Silverfort sells an identity security platform that enforces identity security inline and at the moment of authentication across workforce users, privileged users, third parties, non-human identities and AI agents. CISO Tribune files both under Identity threat detection and response. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

Change the companies

Up to four companies side by side.

  • Obsidian Security
  • Silverfort
Obsidian Security vs Silverfort: Products, Customers and Funding Compared
Obsidian SecurityObsidian Security sells real-time visibility, continuous governance and runtime enforcement over agents, identities and integrations across third-party apps.obsidiansecurity.comSilverfortSilverfort sells an identity security platform that enforces identity security inline and at the moment of authentication across workforce users, privileged users, third parties, non-human identities and AI agents.silverfort.com
What it sells
  • Continuous GovernanceChecks each requirement, written once, in each connected app that exposes the data it needs.
  • ITDR[1][7]Silverfort monitors every authentication and access attempt of every human and machine in a hybrid environment.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Privately held[1]Not stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • August 4, 2026Obsidian Security said it raised $85 million in a Series D funding round that valued the company at $1.1 billion.[15]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Obsidian Security sells to security teams that must defend actions by identities they can barely enumerate, across apps they did not build, on infrastructure they do not control. Obsidian Security describes security teams at large financial services and technology companies adopting its product to detect account takeovers, SaaS threats and privilege misuse. Obsidian Security addresses enterprises whose data lives in third-party enterprise apps they do not own. Obsidian Security addresses organisations whose employees connect AI agents to business apps through MCP. Obsidian Security addresses organisations where each team picks its own AI agent tool.Silverfort packages are available for on-prem, cloud and hybrid environments. Silverfort bases its pricing on the size of the organization. Silverfort addresses industrial networks and the risks of third-party access, and malicious access across complex telecom environments. Silverfort addresses secure access for students and staff, and the safeguarding of patient information and mission-critical applications.
Last verified
November 4, 2026November 5, 2026

Where they overlap

  • Obsidian Security and Silverfort are both filed under Identity threat detection and response.

Where they differ, field by field

  • Obsidian Security's primary category is SaaS security posture; Silverfort's is Identity threat detection and response.
  • Obsidian Security is also filed under AI model and agent security and Workforce AI usage security. Silverfort is also filed under Privileged access management, Non-human identity security and Passwordless authentication and authenticators.
  • Obsidian Security lists Continuous Governance. Silverfort lists ITDR.
  • Obsidian Security is privately held.

What it sells: Obsidian Security

What Continuous Governance does
The control model includes mappings to NIST, CIS, ISO 27001, and GDPR. Supported controls are checked continuously, and changes are shown. Fixes are routed through Jira, ServiceNow, and other supported tools.

What it sells: Silverfort

What ITDR does[1][7]
Silverfort uncovers anomalies through protocol inspection, identity behavior baselines and threat pattern detection, such as ticket misuse and credential replay. When Silverfort detects malicious identity activity, it can block or interrupt the flow by denial, MFA challenge or session termination, enforce virtual fences, or quarantine access. Silverfort enriches alerts with identity risk context and forensic detail and pushes them to SIEM, XDR, SOAR or security operations tools.

Questions about Obsidian Security and Silverfort

What do Obsidian Security and Silverfort sell?
Obsidian Security sells Continuous Governance. Silverfort sells ITDR.
Are Obsidian Security and Silverfort in the same category?
They share Identity threat detection and response. Obsidian Security's primary category is SaaS security posture and Silverfort's is Identity threat detection and response.
Who owns Obsidian Security and Silverfort?
Obsidian Security is privately held.
Who are Obsidian Security and Silverfort sold to?
From its own pages, Obsidian Security sells to security teams that must defend actions by identities they can barely enumerate, across apps they did not build, on infrastructure they do not control. Silverfort packages are available for on-prem, cloud and hybrid environments.
What have Obsidian Security and Silverfort announced recently?
August 4, 2026: Obsidian Security said it raised $85 million in a Series D funding round that valued the company at $1.1 billion.

About Obsidian Security

Obsidian Security sells real-time visibility, continuous governance and runtime enforcement over agents, identities and integrations across third-party apps. Obsidian Security provides guardrails and real-time controls for AI agents that need access to third-party apps. The Obsidian platform turns billions of signals across business critical applications into security intelligence to protect users, agents, and data. Obsidian Security collects and connects third-party app and AI configurations, user activity, real-world threat signals, and browser telemetry.[3][4][13]

Obsidian Security says enterprise data lives in Salesforce, Workday, ServiceNow and 35K+ third-party enterprise apps that customers do not own. Obsidian Security says non-human identities now outnumber people inside the enterprise application estate. Obsidian Security says every AI application and agent connected to an enterprise inherits the permissions and trust misconfigurations that already existed in enterprise applications. Obsidian Security says vibe-coded workflows connect straight into Salesforce, Snowflake, Workday, and Slack, often before anyone has reviewed them. Obsidian Security spent years mapping every identity, permission, and data flow across third-party enterprise applications. Obsidian Security gives customers visibility into what is connected, controls to enforce what is allowed, and clarity on what needs to change.[3][5]

Obsidian Security has over 200 integrations into SaaS and AI applications that pull posture and activity data. The Obsidian browser extension captures real-time user and AI agent activity. Obsidian Security normalizes every human and non-human identity, entitlement, access, and action and connects them in a knowledge graph. The Obsidian Knowledge Graph maps the relationships between identities, permissions, and actions. Obsidian Security layers configuration, policy, and ownership data together to surface misconfigurations and privilege overlaps. Obsidian Security builds machine learning baselines from real enterprise behavior, refined by what it learns from actual incidents. Obsidian Security normalizes and correlates 29+ billion events from third-party applications every month and feeds them back into the platform. Obsidian Security builds detections from how attackers acted across 500+ real breach responses with DFIR firms. When one customer identifies and removes a risky integration or access pattern, Obsidian Security shares that signal automatically across every environment it protects. Obsidian Security provides out-of-the-box detection rules mapped to the MITRE ATT&CK framework and machine learning models based on real incident data. Obsidian Security integrates with SIEM and SOAR platforms for automated workflows. Obsidian Security provides an AI extension of the security team that explains rules, triages threats, and manages exceptions.[4][6][7][8][13]

Obsidian Security centralizes AI agent policy and enforces it at runtime across coding agents, agent platforms, MCP connections, and existing gateways. Obsidian Security agent policies use who the agent acts for, that person's employment status, and the team's data labels to tell a routine action from a risky one. Obsidian Security agent policies hold or block only the agent actions that match their conditions, and tool calls that match no policy proceed. Obsidian Security lets teams test each policy against real agent traffic before it stops anything. Obsidian Security says employees can connect AI agents to apps such as Salesforce, Snowflake, Slack, and Google Drive through MCP. The Obsidian proxy evaluates MCP traffic at each step of a session, including the app the agent can reach, the records it can list, and each tool call. The Obsidian proxy maps each MCP session to the person who started it, their account in the app, and the workspace, org, or instance the session reaches. With the Obsidian proxy, agents receive a proxy-issued token, and each user authorizes the app through the vendor's own consent flow.[5][9][10]

Obsidian Security monitors every new and existing MCP server in an environment with one dashboard. Obsidian Security shows MCP servers across AI agent platforms such as n8n and Microsoft Copilot. Obsidian Security raises risk alerts when agents connect to MCP servers without authentication. Obsidian Security helps teams spot unvetted or suspicious MCP servers and remove them.[11]

Obsidian Security maps supported identity, permission, configuration, and activity data to one control model. Obsidian Security provides mappings to NIST, CIS, ISO 27001, and GDPR. Obsidian Security continuously checks supported controls and shows what changed. Obsidian Security attaches the available identity, permission, and ownership context to each finding so teams can find the cause and route the fix. Obsidian Security routes fixes through Jira, ServiceNow, and other supported tools. Obsidian Security fixes misconfigurations, removes high-risk integrations, and stops malicious activity in third-party apps. Obsidian Security detects and removes risky or unauthorized AI agent actions in third-party apps. Obsidian Security pairs inline defenses against credential and session theft with alerts for investigation and response. Obsidian Security monitors configuration drift and spots violations to automate compliance reporting. Obsidian Security discovers app sprawl, including unsanctioned AI and shadow SaaS. Obsidian Security offers coverage for organisations of up to 1K users.[12][13][14]

Obsidian Security committed to securing identity and SaaS apps, which it describes as a new attack surface that nobody was watching. Security teams at large financial services and technology companies adopted Obsidian Security to detect account takeovers, SaaS threats and privilege misuse. Obsidian Security is backed by IVP, Norwest, and GV. Obsidian Security announced an $85M Series D led by Crescent Cove Advisors.[2][5][7][11][12][13]

Obsidian Security on the record

Sources

Obsidian Security full record

  1. [1]obsidiansecurity.comObsidian Security · obsidiansecurity.com · undated page, accessed November 4, 2026 · Tier A
  2. [2]Unlocking ai potential securelyObsidian Security · obsidiansecurity.com · undated page, accessed November 4, 2026 · Tier A
  3. [3]Secure AI. Fearless Innovation. | ObsidianObsidian Security · undated page, accessed November 10, 2026 · Tier A
  4. [4]The Obsidian Security PlatformObsidian Security · undated page, accessed November 10, 2026 · Tier A
  5. [5]Obsidian Security – Who We AreObsidian Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]The Data Behind Better SecurityObsidian Security · undated page, accessed November 10, 2026 · Tier A
  7. [7]Network EffectsObsidian Security · undated page, accessed November 10, 2026 · Tier A
  8. [8]Automate Third-Party Application ComplianceObsidian Security · undated page, accessed November 10, 2026 · Tier A
  9. [9]Runtime Policy Decision Engine for AI Agents | Obsidian SecurityObsidian Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]MCP Security Proxy for AI Agents | Obsidian SecurityObsidian Security · undated page, accessed November 10, 2026 · Tier A
  11. [11]MCP Security: Audit and Control Every MCP ServerObsidian Security · undated page, accessed November 10, 2026 · Tier A
  12. [12]Continuous Third-Party App Governance | Obsidian SecurityObsidian Security · undated page, accessed November 10, 2026 · Tier A
  13. [13]Third-Party Application Security | Obsidian SecurityObsidian Security · undated page, accessed November 10, 2026 · Tier A
  14. [14]Flexible SaaS Security Pricing | ObsidianObsidian Security · undated page, accessed November 10, 2026 · Tier A
  15. [15]Obsidian Security raises funding at $1.1 billion valuation on AI security demand | ReutersReuters · published August 4, 2026 · Tier B

Silverfort full record

  1. [1]silverfort.comSilverfort · silverfort.com · undated page, accessed November 5, 2026 · Tier A
  2. [2]Silverfort acquires fabrix securitySilverfort · silverfort.com · published April 28, 2026 · Tier A
  3. [3]Silverfort Identity Security PlatformSilverfort · undated page, accessed November 10, 2026 · Tier A
  4. [4]About Silverfort: Identity Security PlatformSilverfort · undated page, accessed November 10, 2026 · Tier A
  5. [5]Silverfort | Runtime Identity Security for AI, AD & CloudSilverfort · undated page, accessed November 10, 2026 · Tier A
  6. [6]Silverfort Pricing - SilverfortSilverfort · undated page, accessed November 10, 2026 · Tier A
  7. [7]Universal MFA | SilverfortSilverfort · undated page, accessed November 10, 2026 · Tier A
  8. [8]Authentication FirewallSilverfort · undated page, accessed November 10, 2026 · Tier A
  9. [9]Non-Human Identity SecuritySilverfort · undated page, accessed November 10, 2026 · Tier A
  10. [10]AI Agent SecuritySilverfort · undated page, accessed November 10, 2026 · Tier A
  11. [11]Identity Security Posture ManagementSilverfort · undated page, accessed November 10, 2026 · Tier A
  12. [12]Identity Threat Detection and Response – ITDR SolutionSilverfort · undated page, accessed November 10, 2026 · Tier A
  13. [13]Solutions - SilverfortSilverfort · undated page, accessed November 10, 2026 · Tier A
  14. [14]AI Agent Security: Silverfort vs. Siloed ToolsSilverfort · undated page, accessed November 10, 2026 · Tier A

Spot a factual error? Request a correction.